Hi, I recently just bought a 2003 SB Cobra. He just has all 4 new tires installed including 555R Drag Radials on the r ear. During the short time he had the car with them on, he bottomed while pulling out of a car show and the rear fender carved into the tire a bit. To the point where there is a "flap" on the outer wall of the tire. He said he took it back to Discount Tire where he bought them and they said they were ok. I know its hard to tell by looking at the pictures but the weather isnt nice enough to get them checked out yet. Looking for your opinion on whether it should be replaced or not. Thanks!